How clever, thank you Chris! I'll go and look for some today in case more hatch. I'm day 22 and 7 birds have hatched in spite of my error on the humidity, so I can't believe how lucky I am. They've found it quite hard to get on their feet at first with some falling over backwards at first. Presumably as they will be too big, I can't expect many to hatch late? None of the rest have pipped. How long would you leave the incubator running?